Liquid cleaning composition comprising an anionic/betaine surfactant mixture having low viscosity

Abstract

A light duty liquid cleaning composition comprising at least one ammonium or metal salt of a C 8 -C 16 linear alkyl benzene sulfonate surfactant, at least one ammonium or metal salt of an ethoxylated C 8 -C 18 alkyl ether sulfate surfactant having 1 to 30 moles of ethylene oxide, and at least one betaine surfactant; wherein (a) a total amount of surfactant in the composition is at least 30 weight %, (b) the composition has a pH less than 7 and a viscosity of less than 75 cPs measured at 25° C. (c) if a magnesium salt of a C 8 -C 16 linear alkyl benzene sulfonate surfactant is present in the composition, it is present in an amount of 0.1 to less than 3 or greater than 16% by weight of the composition, and (d) the composition does not contain an inorganic magnesium

1. A light duty liquid cleaning composition comprising at least one ammonium or metal salt of a C 8 -C 16  linear alkyl benzene sulfonate surfactant, at least one ammonium or metal salt of an ethoxylated C 8 -C 18  alkyl ether sulfate surfactant having 1 to 30 moles of ethylene oxide, and at least one betaine surfactant; wherein
 a. said linear alkyl benzene sulfonate surfactant, said alkyl ether sulfate surfactant, and said betaine surfactant are present in the composition in a combined a total amount of at least 30 weight %, 
 b. the composition has a pH less than 7 and a viscosity of less than 75 cPs measured at 25°C, 
 c. if a magnesium salt of a C 8 -C 16  linear alkyl benzene sulfonate surfactant is present in the composition, it is present in an amount of 0.1 to less than 3 or greater than 16% by weight of the composition, and 
 d. the composition does not contain an inorganic magnesium salt; wherein the composition further comprises a water-miscible organic solvent and pentasodium pentatate. 
 
     
     
       2. The light duty liquid cleaning composition of  claim 1 , wherein the total of all surfactants in the composition is 30 to 45 weight %. 
     
     
       3. The light duty liquid cleaning composition of  claim 1 , wherein
 a. the at least one ammonium or metal salt of a C 8 -C 16  linear alkyl benzene sulfonate surfactant comprises a sodium salt of a C 8 -C 16  linear alkyl benzene sulfonate surfactant and is present in an amount from greater than 6% up to 30 weight % of the composition; 
 b. the at least one ammonium or metal salt of an ethoxylated C 8 -C 18  alkyl ether sulfate surfactant having 1 to 30 moles of ethylene oxide is present in an amount of 4 to 30 weight % of the composition; 
 c. the at least one betaine surfactant is present in an amount of 2 to 10 weight % of the composition. 
 
     
     
       4. The light duty liquid cleaning composition of  claim 3 , wherein
 a. the at least one ammonium or metal salt of an ethoxylated C 8 -C 16  alkyl ether sulfate surfactant having 1 to 30 moles of ethylene oxide comprises ammonium alcohol ether sulfate 1.3 EO; and 
 b. the at least one betaine surfactant comprises cocoamidopropyl betaine. 
 
     
     
       5. The light duty liquid cleaning composition of  claim 1 , wherein the water-miscible organic solvent is selected from the group consisting of a C 2-4 mono alkanol, a C 2-4 dihydroxy alkanol, a C 2-4 polyhydroxy alkanol, an ether, a diether, ethanol, isopropanol, dipropylene glycol monobutyl ether, dipropylene glycol methyl ether, propylene glycol n- butyl ether, propylene glycol, hexylene glycol, alkali metal cumene, alkali metal toluene, alkali metal xylene sulfonate, sodium cumene sulfonate, and/or sodium xylene sulfonate, and mixtures thereof. 
     
     
       6. The light duty liquid cleaning composition of  claim 1 , wherein the water-miscible organic solvent comprises dipropylene glycol methyl ether. 
     
     
       7. The light duty liquid cleaning composition of  claim 6 , wherein the water-miscible organic solvent comprises dipropylene glycol methyl ether and ethanol. 
     
     
       8. The light duty liquid cleaning composition of  claim 1 , wherein the water miscible organic solvent component is present in an amount of 5-20% by weight. 
     
     
       9. The light duty liquid cleaning composition of  claim 1 , further comprising an organic acid. 
     
     
       10. The light duty liquid cleaning composition of  claim 9 , wherein the organic acid is selected from the group consisting of an alpha-hydroxy acid, lactic acid, citric acid, salicylic acid, glycolic acid, and/or ortho hydroxy benzoic acid, and mixtures thereof. 
     
     
       11. The light duty liquid cleaning composition of  claim 1  further comprising an inorganic acid. 
     
     
       12. The light duty liquid cleaning composition of  claim 1 , further comprising an alkali metal halide. 
     
     
       13. The light duty liquid cleaning composition of  claim 12 , wherein the alkali metal halide is sodium chloride. 
     
     
       14. The light duty liquid cleaning composition of  claim 1 , further comprising a corrosion inhibitor. 
     
     
       15. The light duty liquid cleaning composition of  claim 14 , wherein the corrosion inhibitor is present in an amount of 0.02 to 2.0 weight %. 
     
     
       16. The light duty liquid cleaning composition of  claim 15 , wherein the corrosion inhibitor is sodium sulfate. 
     
     
       17. The light duty liquid cleaning composition of  claim 1 , wherein the pH is 2.0-4.5. 
     
     
       18. The light duty liquid cleaning composition of  claim 1 , wherein the light duty liquid cleaning composition is not a microemulsion or protomicroemulsion. 
     
     
       19. The light duty liquid cleaning composition of  claim 7 , wherein the viscosity is 35-65 cPs. 
     
     
       20. The composition of  claim 1 , further comprising an additive selected from the group consisting of a dye, a fragrance, a perfume, a thickening agent, an abrasive agent, a disinfectant, a radical scavenger, bleach, a chelating agent, and/or an antibacterial agent, and mixtures thereof. 
     
     
       21. The composition of  claim 1 , wherein the composition has an initial foam volume according to a foam volume test of at least 340 ml and a foam volume with soil of at least 120 ml. 
     
     
       22. A method of removing grease and other deposits comprising applying the light duty liquid cleaning composition of  claim 1 , to an area to be cleaned. 
     
     
       23. A non-aerosol container containing the cleaning composition of  claim 1 , and having a dispenser to dispense the light duty liquid cleaning composition. 
     
     
       24. The non-aerosol container of  claim 23 , wherein the dispenser is a foam-generating pump, so that the light duty liquid cleaning composition can be dispensed in the form of a foam.